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SConstruct
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# SCons build recipe for the GPSD project
# Important targets:
#
# build - build the software (default)
# dist - make distribution tarball
# install - install programs, libraries, and manual pages
# uninstall - undo an install
#
# check - run regression and unit tests.
# audit - run code-auditing tools
# testbuild - test-build the code from a tarball
# website - refresh the website
# release - ship a release
#
# --clean - clean all normal build targets
# sconsclean - clean up scons dotfiles (but not the database: .sconsign.dblite)
#
# Setting the DESTDIR environment variable will prefix the install destinations
# without changing the --prefix prefix.
# Unfinished items:
# * Out-of-directory builds: see http://www.scons.org/wiki/UsingBuildDir
# * Coveraging mode: gcc "-coverage" flag requires a hack
# for building the python bindings
# * Python 3 compatibility in this recipe
# Since SCons 3.0.0 forces print_function on us, it needs to be unconditional.
# This is recognized to be a bug in SCons, but we need to live with it for now,
# and we'll need this for eventual Python 3 compatibility, anyway.
# Python requires this to precede any non-comment code.
from __future__ import print_function
import ast
import copy
import glob
import imp # for imp.find_module('gps'), imp deprecated in 3.4
import operator
import os
import platform
import re
# replacement for functions from the commands module, which is deprecated.
import subprocess
import sys
import time
from distutils import sysconfig
from distutils.util import get_platform
from functools import reduce
import SCons
from leapsecond import conditional_leapsecond_fetch
# Release identification begins here
# Keep in sync with gps/__init__.py
gpsd_version = "3.18.1"
# client library version
libgps_version_current = 24
libgps_version_revision = 0
libgps_version_age = 0
# Release identification ends here
# Hosting information (mainly used for templating web pages) begins here
# Each variable foo has a corresponding @FOO@ expanded in .in files.
# There are no project-dependent URLs or references to the hosting site
# anywhere else in the distribution; preserve this property!
admin = "https://savannah.nongnu.org/project/admin/?group=gpsd"
annmail = "gpsd-announce@nongnu.org"
browserepo = "http://git.savannah.gnu.org/cgit/gpsd.git"
bugtracker = "https://savannah.nongnu.org/bugs/?group=gpsd"
cgiupload = "root@thyrsus.com:/var/www/cgi-bin/"
clonerepo = "https://savannah.nongnu.org/git/?group=gpsd"
devmail = "gpsd-dev@lists.nongnu.org"
download = "http://download-mirror.savannah.gnu.org/releases/gpsd/"
formserver = "www@thyrsus.com"
gitrepo = "git://git.savannah.nongnu.org/gpsd.git"
ircchan = "irc://chat.freenode.net/#gpsd"
mailman = "https://lists.nongnu.org/mailman/listinfo/"
mainpage = "https://savannah.nongnu.org/projects/gpsd/"
scpupload = "garyemiller@dl.sv.nongnu.org:/releases/gpsd/"
sitename = "Savannah"
sitesearch = "catb.org"
tiplink = "<a href='https://www.patreon.com/esr'>" \
"leave a remittance at Patreon</a>"
tipwidget = '<p><a href="https://www.patreon.com/esr">' \
'Donate here to support continuing development.</a></p>'
usermail = "gpsd-users@lists.nongnu.org"
webform = "http://www.thyrsus.com/cgi-bin/gps_report.cgi"
website = "http://catb.org/gpsd"
webupload = "login.ibiblio.org:/public/html/catb/gpsd"
# Hosting information ends here
# gpsd needs Scons version at least 2.3
EnsureSConsVersion(2, 3, 0)
# gpsd needs Python version at least 2.6
EnsurePythonVersion(2, 6)
PYTHON_SYSCONFIG_IMPORT = 'from distutils import sysconfig'
# Utility productions
def Utility(target, source, action, **kwargs):
target = env.Command(target=target, source=source, action=action, **kwargs)
env.AlwaysBuild(target)
env.Precious(target)
return target
def UtilityWithHerald(herald, target, source, action, **kwargs):
if not env.GetOption('silent'):
action = ['@echo "%s"' % herald] + action
return Utility(target=target, source=source, action=action, **kwargs)
def _getstatusoutput(cmd, input=None, shell=True, cwd=None, env=None):
pipe = subprocess.Popen(cmd, shell=shell, cwd=cwd, env=env,
stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
(output, errout) = pipe.communicate(input=input)
status = pipe.returncode
return (status, output)
def _getoutput(cmd, input=None, shell=True, cwd=None, env=None):
return _getstatusoutput(cmd, input, shell, cwd, env)[1]
# Spawn replacement that suppresses non-error stderr
def filtered_spawn(sh, escape, cmd, args, env):
proc = subprocess.Popen([sh, '-c', ' '.join(args)],
env=env, close_fds=True, stderr=subprocess.PIPE)
_, stderr = proc.communicate()
if proc.returncode:
sys.stderr.write(stderr)
return proc.returncode
#
# Build-control options
#
# without this, scons will not rebuild an existing target when the
# source changes.
Decider('timestamp-match')
# Start by reading configuration variables from the cache
opts = Variables('.scons-option-cache')
systemd_dir = '/lib/systemd/system'
systemd = os.path.exists(systemd_dir)
# Set distribution-specific defaults here
imloads = True
boolopts = (
# GPS protocols
("ashtech", True, "Ashtech support"),
("earthmate", True, "DeLorme EarthMate Zodiac support"),
("evermore", True, "EverMore binary support"),
("fury", True, "Jackson Labs Fury and Firefly support"),
("fv18", True, "San Jose Navigation FV-18 support"),
("garmin", True, "Garmin kernel driver support"),
("garmintxt", True, "Garmin Simple Text support"),
("geostar", True, "Geostar Protocol support"),
("greis", True, "Javad GREIS support"),
("itrax", True, "iTrax hardware support"),
("mtk3301", True, "MTK-3301 support"),
("navcom", True, "Navcom NCT support"),
("nmea0183", True, "NMEA0183 support"),
("nmea2000", True, "NMEA2000/CAN support"),
("oncore", True, "Motorola OnCore chipset support"),
("sirf", True, "SiRF chipset support"),
("skytraq", True, "Skytraq chipset support"),
("superstar2", True, "Novatel SuperStarII chipset support"),
("tnt", True, "True North Technologies support"),
("tripmate", True, "DeLorme TripMate support"),
("tsip", True, "Trimble TSIP support"),
("ublox", True, "u-blox Protocol support"),
# Non-GPS protocols
("aivdm", True, "AIVDM support"),
("gpsclock", True, "GPSClock support"),
("isync", True, "Spectratime iSync LNRClok/GRCLOK support"),
("ntrip", True, "NTRIP support"),
("oceanserver", True, "OceanServer support"),
("passthrough", True, "build support for passing through JSON"),
("rtcm104v2", True, "rtcm104v2 support"),
("rtcm104v3", True, "rtcm104v3 support"),
# Time service
("ntpshm", True, "NTP time hinting via shared memory"),
("ntp", True, "NTP time hinting support"),
("oscillator", True, "Disciplined oscillator support"),
("pps", True, "PPS time syncing support"),
# Export methods
("dbus_export", True, "enable DBUS export support"),
("shm_export", True, "export via shared memory"),
("socket_export", True, "data export over sockets"),
# Communication
("bluez", True, "BlueZ support for Bluetooth devices"),
("ipv6", True, "build IPv6 support"),
("netfeed", True, "build support for handling TCP/IP data sources"),
('usb', True, "libusb support for USB devices"),
# Other daemon options
("control_socket", True, "control socket for hotplug notifications"),
("force_global", False, "force daemon to listen on all addressses"),
("systemd", systemd, "systemd socket activation"),
("timing", False, "latency timing support"),
# Client-side options
("clientdebug", True, "client debugging support"),
("libgpsmm", True, "build C++ bindings"),
("ncurses", True, "build with ncurses"),
("qt", True, "build QT bindings"),
# Daemon options
("controlsend", True, "allow gpsctl/gpsmon to change device settings"),
("nofloats", False, "float ops are expensive, suppress error estimates"),
("reconfigure", True, "allow gpsd to change device settings"),
("squelch", False, "squelch gpsd_log/gpsd_hexdump to save cpu"),
# Build control
("coveraging", False, "build with code coveraging enabled"),
("debug", False, "include debug information in build"),
("gpsdclients", True, "gspd client programs"),
("gpsd", True, "gpsd itself"),
("implicit_link", imloads, "implicit linkage is supported in shared libs"),
("leapfetch", True, "fetch up-to-date data on leap seconds."),
("magic_hat", sys.platform.startswith('linux'),
"special Linux PPS hack for Raspberry Pi et al"),
("manbuild", True, "build help in man and HTML formats"),
("minimal", False, "turn off every option not set on the command line"),
("nostrip", False, "don't symbol-strip binaries at link time"),
("profiling", False, "build with profiling enabled"),
("python", True, "build Python support and modules."),
("shared", True, "build shared libraries, not static"),
("timeservice", False, "time-service configuration"),
("xgps", True, "include xgps and xgpsspeed."),
# Test control
("slow", False, "run tests with realistic (slow) delays"),
)
for (name, default, help) in boolopts:
opts.Add(BoolVariable(name, help, default))
# Gentoo, Fedora, opensuse systems use uucp for ttyS* and ttyUSB*
if os.path.exists("/etc/gentoo-release"):
def_group = "uucp"
else:
def_group = "dialout"
nonboolopts = (
("fixed_port_speed", 0, "fixed serial port speed"),
("fixed_stop_bits", 0, "fixed serial port stop bits"),
("gpsd_group", def_group, "privilege revocation group"),
("gpsd_user", "nobody", "privilege revocation user",),
("max_clients", '64', "maximum allowed clients"),
("max_devices", '4', "maximum allowed devices"),
("prefix", "/usr/local", "installation directory prefix"),
("python_coverage", "coverage run", "coverage command for Python progs"),
("python_libdir", "", "Python module directory prefix"),
("qt_versioned", "", "version for versioned Qt"),
("sysroot", "", "cross-development system root"),
("target", "", "cross-development target"),
("target_python", "python", "target Python version as command"),
)
for (name, default, help) in nonboolopts:
opts.Add(name, help, default)
pathopts = (
("bindir", "bin", "application binaries directory"),
("docdir", "share/doc", "documents directory"),
("includedir", "include", "header file directory"),
("libdir", "lib", "system libraries"),
("mandir", "share/man", "manual pages directory"),
("pkgconfig", "$libdir/pkgconfig", "pkgconfig file directory"),
("sbindir", "sbin", "system binaries directory"),
("sysconfdir", "etc", "system configuration directory"),
("udevdir", "/lib/udev", "udev rules directory"),
)
for (name, default, help) in pathopts:
opts.Add(PathVariable(name, help, default, PathVariable.PathAccept))
#
# Environment creation
#
import_env = (
"DISPLAY", # Required for dia to run under scons
"GROUPS", # Required by gpg
"HOME", # Required by gpg
"LOGNAME", # LOGNAME is required for the flocktest production.
"MACOSX_DEPLOYMENT_TARGET", # Required by MacOSX 10.4 and probably earlier
'PATH', # Required for ccache and Coverity scan-build
# Pass more environment variables to pkg-config (required for crossbuilds)
'PKG_CONFIG_LIBDIR',
'PKG_CONFIG_PATH', # Set .pc file directory in a crossbuild
# Pass more environment variables to pkg-config (required for crossbuilds)
'PKG_CONFIG_SYSROOT_DIR',
'STAGING_DIR', # Required by the OpenWRT and CeroWrt builds.
'STAGING_PREFIX', # Required by the OpenWRT and CeroWrt builds.
'WRITE_PAD', # So we can test WRITE_PAD values on the fly.
)
envs = {}
for var in import_env:
if var in os.environ:
envs[var] = os.environ[var]
envs["GPSD_HOME"] = os.getcwd()
env = Environment(tools=["default", "tar", "textfile"], options=opts, ENV=envs)
# Minimal build turns off every option not set on the command line,
if ARGUMENTS.get('minimal'):
for (name, default, help) in boolopts:
# Ensure gpsd and gpsdclients are always enabled unless explicitly
# turned off.
if ((default is True and
not ARGUMENTS.get(name) and
not (name is "gpsd" or name is "gpsdclients"))):
env[name] = False
# Time-service build = stripped-down with some diagnostic tools
if ARGUMENTS.get('timeservice'):
timerelated = ("gpsd",
"ipv6",
"magic_hat",
"mtk3301", # For the Adafruit HAT
"ncurses",
"nmea0183", # For generic hats of unknown type.
"ntp",
"ntpshm",
"oscillator",
"pps",
"socket_export",
"ublox", # For the Uputronics board
)
for (name, default, help) in boolopts:
if ((default is True and
not ARGUMENTS.get(name) and
name not in timerelated)):
env[name] = False
# NTPSHM requires NTP
if env['ntpshm']:
env['ntp'] = True
# Many drivers require NMEA0183 - in case we select timeserver/minimal
# followed by one of these.
for driver in ('ashtech',
'earthmate',
'fury',
'fv18',
'gpsclock',
'mtk3301',
'oceanserver',
'skytraq',
'tnt',
'tripmate', ):
if env[driver]:
env['nmea0183'] = True
break
# iSync uses ublox underneath, so we force to enable it
if env['isync']:
env['ublox'] = True
opts.Save('.scons-option-cache', env)
env.SConsignFile(".sconsign.dblite")
for (name, default, help) in pathopts:
env[name] = env.subst(env[name])
env['VERSION'] = gpsd_version
env['SC_PYTHON'] = sys.executable # Path to SCons Python
# Set defaults from environment. Note that scons doesn't cope well
# with multi-word CPPFLAGS/LDFLAGS/SHLINKFLAGS values; you'll have to
# explicitly quote them or (better yet) use the "=" form of GNU option
# settings.
env['STRIP'] = "strip"
env['PKG_CONFIG'] = "pkg-config"
for i in ["AR", "ARFLAGS", "CC", "CCFLAGS", "CFLAGS", "CXX", "CXXFLAGS", "LD",
"LINKFLAGS", "PKG_CONFIG", "STRIP", "TAR"]:
if i in os.environ:
j = i
if i == "LD":
i = "SHLINK"
if i in ("CFLAGS", "CCFLAGS", "LINKFLAGS"):
env.Replace(**{j: Split(os.getenv(i))})
else:
env.Replace(**{j: os.getenv(i)})
for flag in ["LDFLAGS", "SHLINKFLAGS", "CPPFLAGS"]:
if i in os.environ:
env.MergeFlags({flag: Split(os.getenv(flag))})
# Keep scan-build options in the environment
for key, value in os.environ.items():
if key.startswith('CCC_'):
env.Append(ENV={key: value})
# Placeholder so we can kluge together something like VPATH builds.
# $SRCDIR replaces occurrences for $(srcdir) in the autotools build.
# scons can get confused if this is not a full path
env['SRCDIR'] = os.getcwd()
# We may need to force slow regression tests to get around race
# conditions in the pty layer, especially on a loaded machine.
if env["slow"]:
env['REGRESSOPTS'] = "-S"
else:
env['REGRESSOPTS'] = ""
if env.GetOption("silent"):
env['REGRESSOPTS'] += " -Q"
def announce(msg):
if not env.GetOption("silent"):
print(msg)
# DESTDIR environment variable means user prefix the installation root.
DESTDIR = os.environ.get('DESTDIR', '')
def installdir(dir, add_destdir=True):
# use os.path.join to handle absolute paths properly.
wrapped = os.path.join(env['prefix'], env[dir])
if add_destdir:
wrapped = os.path.normpath(DESTDIR + os.path.sep + wrapped)
wrapped.replace("/usr/etc", "/etc")
wrapped.replace("/usr/lib/systemd", "/lib/systemd")
return wrapped
# Honor the specified installation prefix in link paths.
if env["sysroot"]:
env.Prepend(LIBPATH=[env["sysroot"] + installdir('libdir',
add_destdir=False)])
# Give deheader a way to set compiler flags
if 'MORECFLAGS' in os.environ:
env.Append(CFLAGS=Split(os.environ['MORECFLAGS']))
# Don't change CCFLAGS if already set by environment.
if 'CCFLAGS' not in os.environ:
# Should we build with profiling?
if env['profiling']:
env.Append(CCFLAGS=['-pg'])
env.Append(LDFLAGS=['-pg'])
# Should we build with coveraging?
if env['coveraging']:
env.Append(CFLAGS=['-coverage'])
env.Append(LDFLAGS=['-coverage'])
env.Append(LINKFLAGS=['-coverage'])
# Should we build with debug symbols?
if env['debug']:
env.Append(CCFLAGS=['-g3'])
# Should we build with optimisation?
if env['debug'] or env['coveraging']:
env.Append(CCFLAGS=['-O0'])
else:
env.Append(CCFLAGS=['-O2'])
# We are C99, tell the world
# env.Append(CFLAGS=['-D_ISOC99_SOURCE'])
# We are POSIX 2001, tell the world
# env.Append(CFLAGS=['-D_POSIX_C_SOURCE=200112L'])
# Cross-development
devenv = (("ADDR2LINE", "addr2line"),
("AR", "ar"),
("AS", "as"),
("CXX", "c++"),
("CXXFILT", "c++filt"),
("CPP", "cpp"),
("GXX", "g++"),
("CC", "gcc"),
("GCCBUG", "gccbug"),
("GCOV", "gcov"),
("GPROF", "gprof"),
("LD", "ld"),
("NM", "nm"),
("OBJCOPY", "objcopy"),
("OBJDUMP", "objdump"),
("RANLIB", "ranlib"),
("READELF", "readelf"),
("SIZE", "size"),
("STRINGS", "strings"),
("STRIP", "strip"))
if env['target']:
for (name, toolname) in devenv:
env[name] = env['target'] + '-' + toolname
if env['sysroot']:
env.MergeFlags({"CFLAGS": ["--sysroot=%s" % env['sysroot']]})
env.MergeFlags({"LINKFLAGS": ["--sysroot=%s" % env['sysroot']]})
# Build help
def cmp(a, b):
return (a > b) - (a < b)
Help("""Arguments may be a mixture of switches and targets in any order.
Switches apply to the entire build regardless of where they are in the order.
Important switches include:
prefix=/usr probably what packagers want
Options are cached in a file named .scons-option-cache and persist to later
invocations. The file is editable. Delete it to start fresh. Current option
values can be listed with 'scons -h'.
""" + opts.GenerateHelpText(env, sort=cmp))
# Configuration
def CheckPKG(context, name):
context.Message('Checking pkg-config for %s... ' % name)
ret = context.TryAction('%s --exists \'%s\''
% (env['PKG_CONFIG'], name))[0]
context.Result(ret)
return ret
# Stylesheet URLs for making HTML and man pages from DocBook XML.
docbook_url_stem = 'http://docbook.sourceforge.net/release/xsl/current/'
docbook_man_uri = docbook_url_stem + 'manpages/docbook.xsl'
docbook_html_uri = docbook_url_stem + 'html/docbook.xsl'
def CheckXsltproc(context):
context.Message('Checking that xsltproc can make man pages... ')
ofp = open("xmltest.xml", "w")
ofp.write('''
<refentry id="foo.1">
<refmeta>
<refentrytitle>foo</refentrytitle>
<manvolnum>1</manvolnum>
<refmiscinfo class='date'>9 Aug 2004</refmiscinfo>
</refmeta>
<refnamediv id='name'>
<refname>foo</refname>
<refpurpose>check man page generation from docbook source</refpurpose>
</refnamediv>
</refentry>
''')
ofp.close()
probe = "xsltproc --nonet --noout '%s' xmltest.xml" % (docbook_man_uri,)
ret = context.TryAction(probe)[0]
os.remove("xmltest.xml")
if os.path.exists("foo.1"):
os.remove("foo.1")
context.Result(ret)
return ret
def CheckCompilerOption(context, option):
context.Message('Checking if compiler accepts %s... ' % (option,))
old_CFLAGS = context.env['CFLAGS']
context.env.Append(CFLAGS=option)
ret = context.TryLink("""
int main(int argc, char **argv) {
return 0;
}
""", '.c')
if not ret:
context.env.Replace(CFLAGS=old_CFLAGS)
context.Result(ret)
return ret
def CheckHeaderDefines(context, file, define):
context.Message('Checking if %s supplies %s... ' % (file, define))
ret = context.TryLink("""
#include <%s>
#ifndef %s
#error %s is not defined
#endif
int main(int argc, char **argv) {
return 0;
}
""" % (file, define, define), '.c')
context.Result(ret)
return ret
def CheckCompilerDefines(context, define):
context.Message('Checking if compiler supplies %s... ' % (define,))
ret = context.TryLink("""
#ifndef %s
#error %s is not defined
#endif
int main(int argc, char **argv) {
return 0;
}
""" % (define, define), '.c')
context.Result(ret)
return ret
# Check if this compiler is C11 or better
def CheckC11(context):
context.Message('Checking if compiler is C11... ')
ret = context.TryLink("""
#if (__STDC_VERSION__ < 201112L)
#error Not C11
#endif
int main(int argc, char **argv) {
return 0;
}
""", '.c')
context.Result(ret)
return ret
def GetPythonValue(context, name, imp, expr, brief=False):
context.Message('Obtaining Python %s... ' % name)
context.sconf.cached = 0 # Avoid bogus "(cached)"
if not env['target_python']:
status, value = 0, str(eval(expr))
else:
command = [target_python_path, '-c',
'%s; print(%s)' % (imp, expr)]
try:
status, value = _getstatusoutput(command, shell=False)
except OSError:
status = -1
if status == 0:
value = value.strip()
else:
value = ''
announce("Python command failed - disabling Python.")
env['python'] = False
context.Result('failed' if status else 'ok' if brief else value)
return value
def GetLoadPath(context):
context.Message("Getting system load path... ")
cleaning = env.GetOption('clean')
helping = env.GetOption('help')
config = Configure(env, custom_tests={
'CheckPKG': CheckPKG,
'CheckXsltproc': CheckXsltproc,
'CheckCompilerOption': CheckCompilerOption,
'CheckCompilerDefines': CheckCompilerDefines,
'CheckC11': CheckC11,
'CheckHeaderDefines': CheckHeaderDefines,
'GetPythonValue': GetPythonValue})
# Always set up LIBPATH so that cleaning works properly.
env.Prepend(LIBPATH=[os.path.realpath(os.curdir)])
if cleaning or helping:
dbusflags = []
rtlibs = []
usbflags = []
bluezflags = []
ncurseslibs = []
confdefs = []
manbuilder = False
htmlbuilder = False
tiocmiwait = True # For cleaning, which works on any OS
else:
# OS X aliases gcc to clang
# clang accepts -pthread, then warns it is unused.
if ((config.CheckCompilerOption("-pthread") and
not sys.platform.startswith('darwin'))):
env.MergeFlags("-pthread")
confdefs = ["/* gpsd_config.h generated by scons, do not hand-hack. */\n"]
confdefs.append('#ifndef GPSD_CONFIG_H\n')
confdefs.append('#define VERSION "%s"\n' % gpsd_version)
confdefs.append('#define GPSD_URL "%s"\n' % website)
cxx = config.CheckCXX()
if not cxx and env["libgpsmm"]:
announce("C++ doesn't work, suppressing libgpsmm build.")
env["libgpsmm"] = False
# define a helper function for pkg-config - we need to pass
# --static for static linking, too.
#
# Using "--libs-only-L --libs-only-l" instead of "--libs" avoids
# a superfluous "-rpath" option in some FreeBSD cases, and the resulting
# scons crash.
# However, it produces incorrect results for Qt5Network in OSX, so
# it can't be used unconditionally.
def pkg_config(pkg, shared=env['shared'], rpath_hack=False):
libs = '--libs-only-L --libs-only-l' if rpath_hack else '--libs'
if not shared:
libs += ' --static'
return ['!%s --cflags %s %s' % (env['PKG_CONFIG'], libs, pkg)]
# The actual distinction here is whether the platform has ncurses in the
# base system or not. If it does, pkg-config is not likely to tell us
# anything useful. FreeBSD does, Linux doesn't. Most likely other BSDs
# are like FreeBSD.
ncurseslibs = []
if env['ncurses']:
if config.CheckPKG('ncurses'):
ncurseslibs = pkg_config('ncurses', rpath_hack=True)
if config.CheckPKG('tinfo'):
ncurseslibs += pkg_config('tinfo', rpath_hack=True)
# It's not yet known whether rpath_hack is appropriate for
# ncurses5-config.
elif WhereIs('ncurses5-config'):
ncurseslibs = ['!ncurses5-config --libs --cflags']
elif WhereIs('ncursesw5-config'):
ncurseslibs = ['!ncursesw5-config --libs --cflags']
elif sys.platform.startswith('freebsd'):
ncurseslibs = ['-lncurses']
elif sys.platform.startswith('openbsd'):
ncurseslibs = ['-lcurses']
elif sys.platform.startswith('darwin'):
ncurseslibs = ['-lcurses']
else:
announce('Turning off ncurses support, library not found.')
env['ncurses'] = False
if env['usb']:
# In FreeBSD except version 7, USB libraries are in the base system
if config.CheckPKG('libusb-1.0'):
confdefs.append("#define HAVE_LIBUSB 1\n")
try:
usbflags = pkg_config('libusb-1.0')
except OSError:
announce("pkg_config is confused about the state "
"of libusb-1.0.")
usbflags = []
elif sys.platform.startswith("freebsd"):
confdefs.append("#define HAVE_LIBUSB 1\n")
usbflags = ["-lusb"]
else:
confdefs.append("/* #undef HAVE_LIBUSB */\n")
usbflags = []
else:
confdefs.append("/* #undef HAVE_LIBUSB */\n")
usbflags = []
env["usb"] = False
if config.CheckLib('librt'):
confdefs.append("#define HAVE_LIBRT 1\n")
# System library - no special flags
rtlibs = ["-lrt"]
else:
confdefs.append("/* #undef HAVE_LIBRT */\n")
rtlibs = []
if env['dbus_export'] and config.CheckPKG('dbus-1'):
confdefs.append("#define HAVE_DBUS 1\n")
dbusflags = pkg_config("dbus-1")
env.MergeFlags(dbusflags)
else:
confdefs.append("/* #undef HAVE_DBUS */\n")
dbusflags = []
if env["dbus_export"]:
announce("Turning off dbus-export support, library not found.")
env["dbus_export"] = False
if env['bluez'] and config.CheckPKG('bluez'):
confdefs.append("#define ENABLE_BLUEZ 1\n")
bluezflags = pkg_config('bluez')
else:
confdefs.append("/* #undef ENABLE_BLUEZ */\n")
bluezflags = []
if env["bluez"]:
announce("Turning off Bluetooth support, library not found.")
env["bluez"] = False
# in_port_t is not defined on Android
if not config.CheckType("in_port_t", "#include <netinet/in.h>"):
announce("Did not find in_port_t typedef, assuming unsigned short int")
confdefs.append("typedef unsigned short int in_port_t;\n")
# SUN_LEN is not defined on Android
if ((not config.CheckDeclaration("SUN_LEN", "#include <sys/un.h>") and
not config.CheckDeclaration("SUN_LEN", "#include <linux/un.h>"))):
announce("SUN_LEN is not system-defined, using local definition")
confdefs.append("#ifndef SUN_LEN\n")
confdefs.append("#define SUN_LEN(ptr) "
"((size_t) (((struct sockaddr_un *) 0)->sun_path) "
"+ strlen((ptr)->sun_path))\n")
confdefs.append("#endif /* SUN_LEN */\n")
if config.CheckHeader(["linux/can.h"]):
confdefs.append("#define HAVE_LINUX_CAN_H 1\n")
announce("You have kernel CANbus available.")
else:
confdefs.append("/* #undef HAVE_LINUX_CAN_H */\n")
announce("You do not have kernel CANbus available.")
env["nmea2000"] = False
# check for C11 or better, and __STDC__NO_ATOMICS__ is not defined
# before looking for stdatomic.h
if ((config.CheckC11() and
not config.CheckCompilerDefines("__STDC_NO_ATOMICS__") and
config.CheckHeader("stdatomic.h"))):
confdefs.append("#define HAVE_STDATOMIC_H 1\n")
else:
confdefs.append("/* #undef HAVE_STDATOMIC_H */\n")
if config.CheckHeader("libkern/OSAtomic.h"):
confdefs.append("#define HAVE_OSATOMIC_H 1\n")
else:
confdefs.append("/* #undef HAVE_OSATOMIC_H */\n")
announce("No memory barriers - SHM export and time hinting "
"may not be reliable.")
# endian.h is required for rtcm104v2 unless the compiler defines
# __ORDER_BIG_ENDIAN__, __ORDER_LITTLE_ENDIAN__ and __BYTE_ORDER__
if config.CheckCompilerDefines("__ORDER_BIG_ENDIAN__") \
and config.CheckCompilerDefines("__ORDER_LITTLE_ENDIAN__") \
and config.CheckCompilerDefines("__BYTE_ORDER__"):
confdefs.append("#define HAVE_BUILTIN_ENDIANNESS 1\n")
confdefs.append("/* #undef HAVE_ENDIAN_H */\n")
confdefs.append("/* #undef HAVE_SYS_ENDIAN_H */\n")
announce("Your compiler has built-in endianness support.")
else:
confdefs.append("/* #undef HAVE_BUILTIN_ENDIANNESS\n */")
if config.CheckHeader("endian.h"):
confdefs.append("#define HAVE_ENDIAN_H 1\n")
confdefs.append("/* #undef HAVE_SYS_ENDIAN_H */\n")
confdefs.append("/* #undef HAVE_MACHINE_ENDIAN_H */\n")
elif config.CheckHeader("sys/endian.h"):
confdefs.append("/* #undef HAVE_ENDIAN_H */\n")
confdefs.append("#define HAVE_SYS_ENDIAN_H 1\n")
confdefs.append("/* #undef HAVE_MACHINE_ENDIAN_H */\n")
elif config.CheckHeader("machine/endian.h"):
confdefs.append("/* #undef HAVE_ENDIAN_H */\n")
confdefs.append("/* #undef HAVE_SYS_ENDIAN_H */\n")
confdefs.append("#define HAVE_MACHINE_ENDIAN_H 1\n")
else:
confdefs.append("/* #undef HAVE_ENDIAN_H */\n")
confdefs.append("/* #undef HAVE_SYS_ENDIAN_H */\n")
confdefs.append("/* #undef HAVE_MACHINE_ENDIAN_H */\n")
announce("You do not have the endian.h header file. "
"RTCM V2 support disabled.")
env["rtcm104v2"] = False
for hdr in ("sys/un", "sys/socket", "sys/select", "netdb", "netinet/in",
"netinet/ip", "arpa/inet", "syslog", "termios", "winsock2"):
if config.CheckHeader(hdr + ".h"):
confdefs.append("#define HAVE_%s_H 1\n"
% hdr.replace("/", "_").upper())
else:
confdefs.append("/* #undef HAVE_%s_H */\n"
% hdr.replace("/", "_").upper())
# check function after libraries, because some function require libraries
# for example clock_gettime() require librt on Linux glibc < 2.17
for f in ("daemon", "strlcpy", "strlcat", "clock_gettime", "strptime",
"gmtime_r", "inet_ntop", "fcntl", "fork"):
if config.CheckFunc(f):
confdefs.append("#define HAVE_%s 1\n" % f.upper())
else:
confdefs.append("/* #undef HAVE_%s */\n" % f.upper())
if config.CheckHeader(["sys/types.h", "sys/time.h", "sys/timepps.h"]):
env.MergeFlags("-DHAVE_SYS_TIMEPPS_H=1")
kpps = True
else:
kpps = False
if env["magic_hat"]:
announce("Forcing magic_hat=no since RFC2783 API is unavailable")
env["magic_hat"] = False
tiocmiwait = config.CheckHeaderDefines("sys/ioctl.h", "TIOCMIWAIT")
if env["pps"] and not tiocmiwait and not kpps:
announce("Forcing pps=no (neither TIOCMIWAIT nor RFC2783 "
"API is available)")
env["pps"] = False
# Map options to libraries required to support them that might be absent.
optionrequires = {
"bluez": ["libbluetooth"],
"dbus_export": ["libdbus-1"],
}
keys = list(map(lambda x: (x[0], x[2]), boolopts)) \
+ list(map(lambda x: (x[0], x[2]), nonboolopts)) \
+ list(map(lambda x: (x[0], x[2]), pathopts))
keys.sort()
for (key, help) in keys:
value = env[key]
if value and key in optionrequires:
for required in optionrequires[key]:
if not config.CheckLib(required):
announce("%s not found, %s cannot be enabled."
% (required, key))
value = False
break
confdefs.append("/* %s */" % help)
if isinstance(value, bool):
if value:
confdefs.append("#define %s_ENABLE 1\n" % key.upper())
else:
confdefs.append("/* #undef %s_ENABLE */\n" % key.upper())
elif value in (0, "", "(undefined)"):
confdefs.append("/* #undef %s */\n" % key.upper())
else:
if value.isdigit():
confdefs.append("#define %s %s\n" % (key.upper(), value))
else:
confdefs.append("#define %s \"%s\"\n" % (key.upper(), value))
# Simplifies life on hackerboards like the Raspberry Pi
if env['magic_hat']:
confdefs.append('''\
/* Magic device which, if present, means to grab a static /dev/pps0 for KPPS */
#define MAGIC_HAT_GPS "/dev/ttyAMA0"
/* Generic device which, if present, means: */
/* to grab a static /dev/pps0 for KPPS */
#define MAGIC_LINK_GPS "/dev/gpsd0"
''')
confdefs.append('''\
#define GPSD_CONFIG_H
#endif /* GPSD_CONFIG_H */
''')
manbuilder = htmlbuilder = None
if env['manbuild']:
if config.CheckXsltproc():
build = "xsltproc --nonet %s $SOURCE >$TARGET"
htmlbuilder = build % docbook_html_uri
manbuilder = build % docbook_man_uri
elif WhereIs("xmlto"):
xmlto = "xmlto %s $SOURCE || mv `basename $TARGET` " \
"`dirname $TARGET`"
htmlbuilder = xmlto % "html-nochunks"
manbuilder = xmlto % "man"
else:
announce("Neither xsltproc nor xmlto found, documentation "
"cannot be built.")
else:
announce("Build of man and HTML documentation is disabled.")
if manbuilder:
env['BUILDERS']["Man"] = Builder(action=manbuilder)
env['BUILDERS']["HTML"] = Builder(action=htmlbuilder,
src_suffix=".xml", suffix=".html")
# Determine if Qt network libraries are present, and
# if not, force qt to off
if env["qt"]:
qt_net_name = 'Qt%sNetwork' % env["qt_versioned"]
qt_network = config.CheckPKG(qt_net_name)
if not qt_network:
env["qt"] = False
announce('Turning off Qt support, library not found.')
# If supported by the compiler, enable all warnings except uninitialized
# and missing-field-initializers, which we can't help triggering because
# of the way some of the JSON-parsing code is generated.
# Also not including -Wcast-qual and -Wimplicit-function-declaration,
# because we can't seem to keep scons from passing these to g++.
#
# Do this after the other config checks, to keep warnings out of them.
for option in ('-Wextra', '-Wall', '-Wno-uninitialized',
'-Wno-missing-field-initializers',
'-Wcast-align', '-Wmissing-declarations',
'-Wmissing-prototypes',
'-Wstrict-prototypes', '-Wpointer-arith', '-Wreturn-type'):
if option not in config.env['CFLAGS']:
config.CheckCompilerOption(option)
# Set up configuration for target Python
PYTHON_LIBDIR_CALL = 'sysconfig.get_python_lib()'
PYTHON_CONFIG_NAMES = ['CC', 'CXX', 'OPT', 'BASECFLAGS',
'CCSHARED', 'LDSHARED', 'SO', 'INCLUDEPY', 'LDFLAGS']
PYTHON_CONFIG_QUOTED = ["'%s'" % s for s in PYTHON_CONFIG_NAMES]
PYTHON_CONFIG_CALL = ('sysconfig.get_config_vars(%s)'
% ', '.join(PYTHON_CONFIG_QUOTED))
# ugly hack from http://www.catb.org/esr/faqs/practical-python-porting/
# handle python2/3 strings
def polystr(o):
if isinstance(o, str):
return o
if isinstance(o, bytes):
return str(o, encoding='latin-1')
raise ValueError